body {
    background-color: rgb(211, 210, 210);
}


.tou_bu {
    width: 100%;
    background-color: aqua;
    height: 40px;
    line-height: 40px;
}

.big_list {
    width: 80%;
    margin: 0px auto;
    display: flex;
    justify-content: end;
    align-items: center;

}

.img {
    margin-right: 15px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
}


/* 下拉列表图片 */
.xiala {
    width: 24px;
    height: 24px;
}

.fenghua {
    position: relative
}

.fenghua:hover+.xiala {
    transform: rotate(180deg);
}

.C1 {
    visibility: hidden;
    position: relative;
}

/* 初始隐藏下拉菜单 */
.C1 {
    visibility: hidden;
    opacity: 0;
    transition: all 0.3s ease;
    position: absolute;
    right: 150px;
    top: 40px;
    /* 确保在头部下方 */
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* 当悬停在头部区域时显示 */
.big_list:hover .C1 {
    visibility: visible;
    opacity: 1;
}

/* 下拉箭头旋转效果 */
.big_list:hover .xiala {
    transform: rotate(180deg);
}

/* 下拉列表盒子 */
.hezi {
    position: absolute;
    width: 120px;
    height: 120px;
    right: 150px;

}

.sjx {
    width: 0;
    height: 0;
    border-left: 14px solid transparent;
    border-right: 14px solid transparent;
    border-bottom: 10px solid white;
}

.neiron {
    width: 120px;
    height: 120px;
    background-color: white;
    text-align: center;
    padding-top: 20px;
}

.n1 {
    line-height: 32px;
}

.n1:hover {
    color: rgb(63, 63, 141);
}